Electrical Certification Pre-Test

Welcome to ABYC's Electrical Certification Pre-Test! This quiz is intended to let you get a feel for the types and complexity of the questions on our professional level certification exams. While scoring well on this pretest is not a prerequisite for taking a class, your score should give an indication of whether you're ready for the complete course. There are 15 questions in this quiz and we would recommend passing it with at least 85%.

Name

When designing and installing a starting circuit for an engine, overcurrent protection:

needs to be within 7” of the source of power.

is not required.

needs to be installed within 72” in protected with sheathing or conduit.

needs to be installed within 40” in protected with sheathing or conduit.

Battery chargers shall always be installed:

in accordance with the manufacturer’s instructions.

in a ventilated, dry accessible location.

In the engine room.

A and B

When wiring a DC system, the DC negative shall be ______, and the DC positive shall be _______.

black or yellow, red

Black, red

yellow, red

Red, black or yellow

When installing an AC system on a boat, all of the following are true EXCEPT:

The shore power neutral must be connected to the AC grounding conductor at the panel.

a galvanic isolator may be installed in the AC grounding conductor.

a warning label must be installed at the shore power inlet.

shore power inlets must be weatherproof if installed on deck.

Galvanic isolators:

Block DC current.

are installed in the DC grounding conductor.

fail in the open position.

block AC ground current

The 10% voltage drop tables can be used on:

conductors used for interior lighting.

conductors used for bilge blowers.

conductors used for navigation lights.

conductors used for main panelboard feeders.

What is the purpose of a diode?

To allow current to only flow one direction.

To boost the current output of an alternator.

To increase voltage.

none of the above.

When sizing overcurrent protection for a bilge pump, the technician should:

size it in accordance with the manufacturer’s recommendation.

size it in accordance with the conductor.

size it in accordance with the voltage drop table.

bilge pumps do not require overcurrent protection.

An ELCI does not need to be installed on a boat if:

an isolation transformer is installed within 10 feet of the shore power inlet.

a residual current device is installed within 10 feet of the shore power inlet.

the boat does not have AC shorepower.

All of the above.

When an AC generator output is showing low voltage you should:

Verify the generator is running at the proper RPM.

check all conductor connections to make sure they are secure.

check the voltage regulator.

all of the above

When you install batteries in _________ you increase voltage, when you install batteries in _________ you increase amperage.

parallel, series

balance, absorption

series, parallel

both A and B

When installing conductors on a boat, they need to be supported:

At least every 18 inches.

At the point of connection and termination only.

Every 40 inches.

They need not be supported.

A GFCI protected outlet must be installed in:

the head.

all sleeping cabins.

the navigation station.

all of the above.

Which statement is TRUE about lead acid batteries?

They may vent hydrogen gas.

They will not vent hydrogen if “sealed” or “maintenance free”.

They only come in deep cycle battery type.

They are not affected by the outside temperature.

When both an AC and DC system are installed on a boat:

the AC grounding bus should be connected to the DC negative bus.

the systems must be completely isolated.

an AC voltmeter must be installed.

the AC and DC systems cannot share a panel.

Thank you for completing ABYC Electrical Certification Pre-Test. If you are confident in how this quiz went, please look at our upcoming class calendar HERE to see when the next available Electrical Certification class will be held.

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